Magnetic core



FIG. 1 is a perspective view of a magnetic core showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a side elevational view thereof, the opposite side being identical;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a cross-sectional view thereof taken generally along sectional lines 7--7 of FIG. 6. 

The ornamental design for magnetic core, as shown and described. 